Terrifying: The high-speed train heads towards the broken down school bus

The students then watched as the train hurtled along the tracks, blasting its horn, and crashed into the bus.

Schoolboy Marvin Schulz, who recorded the moment on his mobile phone, said: "We were on our way to school as normal, but because the B73 was blocked we had to follow a diversion.

"And as we were going over the level crossing, the bend in the bus jammed and it could not go any further.

"Shortly after a train was approaching and panic descended, and we had to evacuate the bus. Then the train crashed into it."

Panic: Schoolchildren watched in horror as the train smashed into the bus

Panic descended when the students realised a train was coming, Schulz said, but luckily the driver kept calm enough to get them to safety.

He added "Of course she was panicking - she is only 23 and what are you supposed to do in that situation? She did the right thing: opened all the doors so everybody could get out and evacuated all the students."

He added that they were all shaken by the experience.

Lucky: Just one person on board the train suffered minor injuries

"[It was] awful, all our legs were shaking and some of my friends started crying," he added.

"We knew that that was exactly where we had been sitting before and what might have happened. That's quite intense," the student said.